The actual Chance Vought (the manufacturer) tested specs for the F4U-D (1944) Corsair, found here:
http://www.wwiiaircraftperformance.org/f4u/f4u.html
Give the following info:
On 100% power, no WEP - 318 mph (or 511 kph), at sea level, in level flight - This can be reached as shown in the source code and with 4.10.1 or 4.11. At this power level, with 2700 rpms for the Wasp, no overheat should occur in the first 30 minutes.. In 4.11, overheat kicks in after a few minutes (measuring now). (one caveat though, in real life they rode with the cowl full open and achieved 318 mph. If 4.10.1 or 4.11, you cannot achieve this 510 kph mark with the cowl full open. And this is also a requirement to reach the needed cooling for full 2700 rpm operation, so that no overheat ever occurs).
On 110% power, full WEP - 358 mph (or 576 kph) at sea level, in level flight - As shown in the source code, this can never be reached in 4.10.1 or 4.11. It also lists (second link in the final list) that water injection (full WEP) at 110% power can be maintained in level flight at sea level for 5 min and 37 sec before engine overheat begins. In 4.11, on the Crimea map, overheat kicks in at 91 seconds and top speed is 550 kph.
Is there another better source than Chance Vought, that Team D is using for the F4U-D flight model ?